Improved machine for sewing brooms



UNITED STATES PATENT OFFICE,

GREENLEAF S'IAOKPOLE, OF NEW YORK, N. Y., ASSIGNOR TO HIMSELF AND H. O. OOVERT, OF SAME PLACE.

IMPROVED MACHINE FOR SEWING BROOMS.` Y

Specification forming part of Letters Patent No. 91,784, dated June 22, 1869.

To all lwhom it may concern:

'Beitknown that I, GREENLEAE S'rAcKPoLE, of New York city, in the county and State of New York, have invented a new and valuable Machine for Sewing Brooms.

The nature of my invention consists in providing lnechanism for sewing brooms.

The object of my invention is to reduce the labor of making brooms to the lowest practicable point by constructing and providing manufacturers with a machine which will perform the greater portion ot' the work-wiz., the sewing, pressing, and binding in a better manner and in less than one-tenth the time that has hitherto been required to perform the same operation by hand.

' Having thus given the object of my invention, I do hereby declare that the following is a full, clear, and exact description ofthe construction and operation of the same, ret'- erence being had to the annexed drawings, making a part of this specification, in which corresponding letters represent corresponding parts.

Figure 1 is a top view of my invention, in which A is the needle-bar and a the needle; B, the shuttle, and b the slack-thread controller. O C are thejaws of the press, and D is the handle of the same, which operates an eccentric held by the clamp d, for the purpose of closing or opening the jaws. Eis the shuttle-driver, and F a covering for the shuttle, which is thrown back in order to show the shuttle and driver. The dotted red line G shows the direction of the binding-twine. The red line H shows the thread which is carried by the needle. h is the spool, which holds the thread for the needle. The black dotted line I shows the position ofthe spool that holds the binding-twine.

Fig. 2 is a side elevation of my machine, in which K is the lever which connects the needie-bar A with the driving-cam L; M, the arm which drives the shuttle, and N the cam which gives the alternate upward and downward motion to the pressing-jaws C O, necessary to force the needle through the broom above and below the binding-twine. O is the crank which drives the shuttle-arm M, and

P a wire with an eye, It, in its upper end to guide the binding-twine relatively to the point ot' the needle, as may be desired in making the different stitches. The dotted red lines show the position of the broom while being bound and sewed, it being held in the press with its edge toward the operator, and handle upward.

Fig. 3 is an end elevation of myrnachine. S is a cam-slot, in which the crank-pin O, plays, and which drives the shuttle-arm. T is a por'- tion of the lower part of the press, having ratchet-teeth cut thereon. U is the pawl that plays into the ratchet, and is operated by the lever shown by the dotted lines, said lever being put in motion by the cam IV.

Fig. 4 represents the shuttle, the red limes showing the direction of the thread. The tension is obtained by passing the thread aroand the grooved wheel Y in the back end of the shuttle, said grooved wheel being made to work easier or harder by turning the screw X, which draws a padded surface against it. One end of the bobbin is heldin the end ot the shaft, upon which -the grooved wheel Y turns, the opposite end dropping into a groove, and being held in place by a guard in such manner as to allow it to run free, no tension whatever being given to the bobbin.

Fig. 5 represents a broom, showing the work made by this machine, the different appearance of the stitches being produced by the changing of the motion of the feed-press by means of aconneetion with the cam N and slide Z, that passes and returns alternately between the ratchet-teeth T and the pawl U in such manner as to stop the feeding connection, taking one stitch above and another below the line. Before feeding along a variety ot'fancy stitches may be made in this way. My machine makes those shown in the drawings.

Instead of the pressing-jaws O O being made to rise and fall, the needle-bar and shuttle could be made so as to produce the motion necessary to carry the thread across the binding-twine, and I have previously constructed a machine in that way, but prefer the arrangement shown in the accompanying drawings..

Having thus described my invention, what I claim as new, and desire to secure by Letters rise and fall alternately with the motion ofthe Patent, isneedle and the shuttle, substantially as and l. The pressing-jaws (J C, in combination for the purpose set forth.

with the shuttle B and needle a. for Sewing Y 1 brooms, substantially as set forth. v GREENLEAF STAQKPOLF' 2. The arrangement; of the pressing-jaws Witnesses:

C C, in sneh manner that each revolution of G. V. BARNUM,

the cam N or its equivalent Will eause them to M. A. SLAIGHT. 

